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Cross Max spoke tension?

Old 07-01-06, 04:49 PM
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Scooby Snax
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Cross Max spoke tension?

Hi, I have a Cross Max SL UST rear wheel where the spoke tension was way off, somewhere in the 70kgf range.
I had popping, going on. the wheel was rebuilt and not retensioned properly obviously. The mechanic who did it claimed to do it according to the park tool chart, I'm going to assume that he was looking at the front wheel spec, 70 - 90 kgf.

I'm trying to find the proper tension. Park's chart has two different ranges, for a Crossmax UST wheel, 110 to 130, and 130 to 150kgf. My gut tells me that if I go for a target tension of 130, I should be ok.

However I'm open to suggestions, or input if you know what it should be.

Thanks,

Scoob
 
Old 07-03-06, 11:44 AM
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I'm nervous "ball parking" aluminium spokes that don't have as much fatige life, considering the abuse that mountain wheels take.
 
Old 07-03-06, 07:22 PM
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Rev.Chuck
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When I checked new Mavic wheels with the alloy spokes(Kyserium and CrossMax) they ran 15-16(As I remember) on the Park tensionmeter. It comes out to the 90-110 range for that spoke, on Parks conversion chart and that is where Mavic wants their rims tensioned.
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Old 07-04-06, 10:11 AM
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Thanks Rev.
I'm looking at Park's cheat sheet, and it has two indications for a Cross Max, one is 110 to 130kgf, and the second is 130 to 150...
Just getting to 130kgf is 27 on the "Park Scale".

What is going on? Am I reading it wrong?
 
Old 07-04-06, 10:48 AM
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On the scale I have that came with the Park tensionmeter(The TM-1), Bladed alluminum spokes are on the chart, the 5.3x1.8 spokes are 21-22(in the 110kgf range) on the scale. Looking at the chart I must have been measuring the steel spoked wheels, they are in the 15-16 range.
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Old 07-04-06, 03:53 PM
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I'm measureing with the guage and I think that they are the 2.1 X 4.2mm spokes.
I'm going to sit down and have a go tonight.

If stock they are 21 - 22 then I assume that it should be good, right now they are 15 to 17.75.
 
Old 07-04-06, 08:08 PM
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Done, Avg tension is 119.9kgf,
U of T called and want to use the wheel to calibrate a laser before I go for a spin.
Truing this was a joy, it honestly took 10 minutes after stress relieving.
 
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